In her first heptathlon since winning Olympic gold in August 2012, Jess finished fourth with 6,520 points - well above the 6,200 needed for Rio and which also gave her entry to this year's World Championships in Beijing.
Jessica Ennis-Hill at her first comeback event this year - the Great CityGames in Manchester.
"I'm really, really pleased," she said afterwards. "Some of my events have been pretty poor, pretty standard. I feel there's so much more to come. If someone had said I'd have had 6,520 beforehand I would have taken that with both hands. It's a pleasing position to be in after all that time off."